The bar graph in Fig. 6 gives the intended majors of a group of 100 randomly selected college freshmen. (The biology category includes the biological and life sciences.) Six more students intend to major in biology than intend to major in business. The number of students intending to major in fields other than business or biology is 4 more than twice the number of students majoring in business or biology. Let x, y, and z represent the three numbers shown in the figure. Use the methods of this section to determine the values of x, y, and z.

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80 60 40 20 Business Biology Other